diff options
Diffstat (limited to 'drivers/iio/adc/at91-sama5d2_adc.c')
| -rw-r--r-- | drivers/iio/adc/at91-sama5d2_adc.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 414610afcb2c..c3450246730e 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -586,15 +586,6 @@ struct at91_adc_temp { u16 saved_oversampling; }; -/* - * Buffer size requirements: - * No channels * bytes_per_channel(2) + timestamp bytes (8) - * Divided by 2 because we need half words. - * We assume 32 channels for now, has to be increased if needed. - * Nobody minds a buffer being too big. - */ -#define AT91_BUFFER_MAX_HWORDS ((32 * 2 + 8) / 2) - struct at91_adc_state { void __iomem *base; int irq; @@ -616,8 +607,8 @@ struct at91_adc_state { struct at91_adc_temp temp_st; struct iio_dev *indio_dev; struct device *dev; - /* Ensure naturally aligned timestamp */ - u16 buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8); + /* We assume 32 channels for now, has to be increased if needed. */ + IIO_DECLARE_BUFFER_WITH_TS(u16, buffer, 32); /* * lock to prevent concurrent 'single conversion' requests through * sysfs. |